├── .gitignore ├── index.php ├── src ├── index.js ├── vendors │ ├── point.js │ ├── segment.js │ ├── filter.js │ └── focus.js └── helpers │ └── autofocus.js ├── .editorconfig ├── composer.json ├── _test ├── index.html ├── assets │ ├── css │ │ └── styles.css │ └── js │ │ ├── scripts.js │ │ └── vendors │ │ └── jquery.min.js └── test.md ├── package.json ├── lib └── api.php ├── README.md └── index.js /.gitignore: -------------------------------------------------------------------------------- 1 | .cache 2 | node_modules 3 | package-lock.json 4 | -------------------------------------------------------------------------------- /index.php: -------------------------------------------------------------------------------- 1 | require_once __DIR__ . '/lib/api.php', 5 | )); -------------------------------------------------------------------------------- /src/index.js: -------------------------------------------------------------------------------- 1 | import Autofocus from './helpers/autofocus.js' 2 | 3 | panel.plugin('sylvainjule/autofocus', { 4 | use: [Autofocus], 5 | }); 6 | -------------------------------------------------------------------------------- /.editorconfig: -------------------------------------------------------------------------------- 1 | root = true 2 | 3 | [*] 4 | indent_style = space 5 | indent_size = 4 6 | end_of_line = lf 7 | charset = utf-8 8 | trim_trailing_whitespace = true 9 | insert_final_newline = true -------------------------------------------------------------------------------- /src/vendors/point.js: -------------------------------------------------------------------------------- 1 | export default function Point(x, y) { 2 | this.x = x; 3 | this.y = y; 4 | } 5 | Point.prototype.toString = function(){ 6 | return '(' + this.x + ', ' + this.y + ')'; 7 | }; -------------------------------------------------------------------------------- /composer.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "sylvainjule/autofocus", 3 | "description": "Content aware image cropping for Kirby", 4 | "type": "kirby-plugin", 5 | "license": "MIT", 6 | "authors": [ 7 | { 8 | "name": "Sylvain Julé", 9 | "email": "contact@sylvain-jule.fr" 10 | } 11 | ], 12 | "require": { 13 | "getkirby/composer-installer": "^1.1" 14 | }, 15 | "extra": { 16 | "installer-name": "autofocus" 17 | }, 18 | "minimum-stability": "beta" 19 | } 20 | -------------------------------------------------------------------------------- /_test/index.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "kirby-autofocus", 3 | "version": "0.0.1", 4 | "description": "Content aware image cropping for Kirby", 5 | "main": "index.js", 6 | "author": "Sylvain Julé", 7 | "license": "MIT", 8 | "scripts": { 9 | "dev": "kirbyup src/index.js --watch", 10 | "build": "kirbyup src/index.js", 11 | "lint": "eslint \"src/**/*.{js,vue}\"", 12 | "lint:fix": "npm run lint -- --fix", 13 | "format": "prettier --write \"src/**/*.{css,js,vue}\"" 14 | }, 15 | "devDependencies": { 16 | "eslint": "^8.2.0", 17 | "eslint-config-prettier": "^8.3.0", 18 | "eslint-plugin-vue": "^8.0.3", 19 | "kirbyup": "^0.21.0", 20 | "prettier": "^2.4.1" 21 | } 22 | } 23 | -------------------------------------------------------------------------------- /src/vendors/segment.js: -------------------------------------------------------------------------------- 1 | import Point from './point.js' 2 | 3 | export default function Segment(x, y, w, h, intensity) { 4 | this.x = x; 5 | this.y = y; 6 | this.w = w; 7 | this.h = h; 8 | this.intensity = intensity || 0; 9 | } 10 | Segment.prototype.midpoint = function(){ 11 | return new Point( 12 | this.x + this.w / 2, 13 | this.y + this.h / 2); 14 | }; 15 | Segment.prototype.draw = function(ctx){ 16 | var n = 255 * this.intensity | 0; 17 | var rad = this.w / 2 * this.intensity; 18 | ctx.save(); 19 | ctx.beginPath(); 20 | ctx.fillStyle = 'rgba(' + n + ',0,0, .5)'; 21 | ctx.arc(this.x + this.w / 2, this.y + this.h / 2, rad, 0, Math.PI * 2, false); 22 | ctx.fill(); 23 | ctx.restore(); 24 | }; 25 | Segment.prototype.drawFocus = function(ctx){ 26 | var n = 255 * this.intensity | 0; 27 | var rad = this.w / 2 * this.intensity; 28 | ctx.save(); 29 | ctx.beginPath(); 30 | ctx.fillStyle = 'rgba(0,0,' + n + ', .5)'; 31 | ctx.arc(this.x + this.w / 2, this.y + this.h / 2, rad, 0, Math.PI * 2, false); 32 | ctx.fill(); 33 | ctx.restore(); 34 | }; -------------------------------------------------------------------------------- /lib/api.php: -------------------------------------------------------------------------------- 1 | array( 5 | array( 6 | 'pattern' => 'autofocus/save-focus', 7 | 'method' => 'POST', 8 | 'action' => function() { 9 | // get coordinates, find page 10 | $filename = get('filename'); 11 | $uri = get('uri'); 12 | 13 | // from pages/first-level+second-level 14 | // to first-level/second-level 15 | $uri = str_replace('+', '/', $uri); 16 | $uri = preg_replace('/^pages\//', '', $uri); 17 | 18 | $coords = get('coords'); 19 | $page = $uri == 'site' ? kirby()->site() : kirby()->page($uri); 20 | $file = $page->file($filename); 21 | $key = option('flokosiol.focus.field.key', 'focus'); 22 | 23 | try { 24 | if($file->content()->get($key)->isEmpty() || $file->content()->get($key) == '{"x":0.5,"y":0.5}') { 25 | $file->update(array($key => $coords)); 26 | return array('status' => 'success'); 27 | } 28 | else { 29 | return array('status' => 'not-empty'); 30 | } 31 | } 32 | catch (Exception $e) { 33 | $response = array( 34 | 'status' => 'error', 35 | 'message' => $e->getMessage() 36 | ); 37 | return $response; 38 | } 39 | } 40 | ), 41 | ) 42 | ); 43 | -------------------------------------------------------------------------------- /_test/assets/css/styles.css: -------------------------------------------------------------------------------- 1 | @charset "UTF-8"; 2 | /* 3 | ----------------------------------- 4 | 5 | Reset -> Eric Meyer 6 | + border-box sur tous les éléments 7 | + html et body 100% 8 | 9 | ----------------------------------- 10 | */ 11 | html, body, div, span, applet, object, iframe, 12 | h1, h2, h3, h4, h5, h6, p, blockquote, pre, 13 | a, abbr, acronym, address, big, cite, code, 14 | del, dfn, em, img, ins, kbd, q, s, samp, 15 | small, strike, strong, sub, sup, tt, var, 16 | b, u, i, center, 17 | dl, dt, dd, ol, ul, li, 18 | fieldset, form, label, legend, 19 | table, caption, tbody, tfoot, thead, tr, th, td, 20 | article, aside, canvas, details, embed, 21 | figure, figcaption, footer, header, hgroup, 22 | menu, nav, output, ruby, section, summary, 23 | time, mark, audio, video { 24 | margin: 0; 25 | padding: 0; 26 | border: 0; 27 | font-size: 100%; 28 | font: inherit; 29 | vertical-align: baseline; } 30 | 31 | /* HTML5 display-role reset for older browsers */ 32 | article, aside, details, figcaption, figure, 33 | footer, header, hgroup, menu, nav, section { 34 | display: block; } 35 | 36 | body { 37 | line-height: 1; } 38 | 39 | ol, ul { 40 | list-style: none; } 41 | 42 | blockquote, q { 43 | quotes: none; } 44 | 45 | blockquote:before, blockquote:after, 46 | q:before, q:after { 47 | content: ''; 48 | content: none; } 49 | 50 | table { 51 | border-collapse: collapse; 52 | border-spacing: 0; } 53 | 54 | *, *:before, *:after { 55 | -webkit-box-sizing: border-box; 56 | -moz-box-sizing: border-box; 57 | box-sizing: border-box; } 58 | 59 | html, body { 60 | width: 100%; 61 | height: 100%; } 62 | 63 | .hide { 64 | display: none; } 65 | 66 | body { 67 | padding: 0; } 68 | 69 | canvas { 70 | float: left; 71 | clear: both; } 72 | -------------------------------------------------------------------------------- /src/vendors/filter.js: -------------------------------------------------------------------------------- 1 | export default function Filter(matrix) { 2 | if (!(this instanceof Filter)) return new Filter(matrix); 3 | if (!matrix) throw new TypeError('convolution matrix required'); 4 | this.matrix = matrix; 5 | this.factor(1); 6 | this.bias(0); 7 | } 8 | 9 | Filter.prototype.width = function(n){ 10 | this.w = n; 11 | return this; 12 | }; 13 | Filter.prototype.height = function(n){ 14 | this.h = n; 15 | return this; 16 | }; 17 | Filter.prototype.factor = function(n){ 18 | this._factor = n; 19 | return this; 20 | }; 21 | Filter.prototype.bias = function(n){ 22 | this._bias = n; 23 | return this; 24 | }; 25 | Filter.prototype.apply = function(input, result){ 26 | var data = input.data; 27 | var out = result.data; 28 | var width = this.w; 29 | var height = this.h; 30 | var matrix = this.matrix; 31 | var w = matrix[0].length; 32 | var h = matrix.length; 33 | var half = Math.floor(h / 2); 34 | var factor = this._factor; 35 | var bias = this._bias; 36 | 37 | for (var y = 0; y < height - 1; y++) { 38 | for (var x = 0; x < width - 1; x++) { 39 | var px = (y * width + x) * 4; 40 | var r = 0, g = 0, b = 0; 41 | 42 | for (var cy = 0; cy < w; ++cy) { 43 | for (var cx = 0; cx < h; ++cx) { 44 | var cpx = ((y + (cy - half)) * width + (x + (cx - half))) * 4; 45 | r += data[cpx + 0] * matrix[cy][cx]; 46 | g += data[cpx + 1] * matrix[cy][cx]; 47 | b += data[cpx + 2] * matrix[cy][cx]; 48 | } 49 | } 50 | 51 | out[px + 0] = factor * r + bias; 52 | out[px + 1] = factor * g + bias; 53 | out[px + 2] = factor * b + bias; 54 | out[px + 3] = data[px + 3]; 55 | } 56 | } 57 | }; 58 | Filter.prototype.canvas = function(canvas){ 59 | var w = canvas.width; 60 | var h = canvas.height; 61 | var ctx = canvas.getContext('2d'); 62 | var data = ctx.getImageData(0, 0, w, h); 63 | var result = ctx.createImageData(w, h); 64 | this.width(w); 65 | this.height(h); 66 | this.apply(data, result); 67 | ctx.putImageData(result, 0, 0); 68 | }; -------------------------------------------------------------------------------- /src/vendors/focus.js: -------------------------------------------------------------------------------- 1 | import Filter from './filter.js' 2 | import Segment from './segment.js' 3 | 4 | export default function focus(canvas, options){ 5 | options = options || {}; 6 | var debug = options.debug; 7 | 8 | // setup 9 | var w = canvas.width; 10 | var h = canvas.height; 11 | var ctx = canvas.getContext('2d'); 12 | var data = ctx.getImageData(0, 0, w, h); 13 | var res = ctx.createImageData(w, h); 14 | 15 | // edge detection 16 | Filter([[0, -1, 0],[-1, 4, -1],[0, -1, 0]]) 17 | .width(w) 18 | .height(h) 19 | .apply(data, res); 20 | 21 | // edge debugging 22 | if (debug) { 23 | canvas.width *= 2; 24 | ctx.putImageData(res, 0, 0); 25 | } 26 | 27 | // single-pass 28 | var segs = segments(res.data, w, h); 29 | 30 | // segment debugging 31 | if (debug) { 32 | debugSegments(segs, ctx); 33 | ctx.translate(w, 0); 34 | ctx.putImageData(data, w, 0); 35 | debugSegments(segs, ctx); 36 | } 37 | 38 | return focalSegment(segs).midpoint(); 39 | } 40 | 41 | function debugSegments(segs, ctx) { 42 | for (var i = 0; i < segs.length; ++i) segs[i].draw(ctx); 43 | focalSegment(segs).drawFocus(ctx); 44 | } 45 | function focalSegment(segs) { 46 | var seg; 47 | var ret = segs[0]; 48 | for (var i = 1; i < segs.length; ++i) { 49 | seg = segs[i]; 50 | if (seg.intensity > ret.intensity) ret = seg; 51 | } 52 | return ret; 53 | } 54 | function segments(data, w, h){ 55 | var segs = []; 56 | var size = 20; 57 | var hx = w / 2; 58 | var hy = h / 2; 59 | 60 | function factor(x, y) { 61 | x = Math.abs(x - hx) / hx; 62 | y = Math.abs(y - hy) / hy; 63 | x /= 2; 64 | y /= 2; 65 | return 1 - (x + y); 66 | } 67 | 68 | for (var x = 0; x < w; ++x) { 69 | for (var y = 0; y < h; ++y) { 70 | var focus = factor(x + size / 2, y + size / 2) * .15; 71 | var width = Math.min(w - x, size); 72 | var height = Math.min(h - y, size); 73 | var pixels = size * size; 74 | var sum = 0; 75 | 76 | for (var sx = 0; sx < width; ++sx) { 77 | for (var sy = 0; sy < height; ++sy) { 78 | var px = ((y + sy) * w + (x + sx)) * 4; 79 | var r = data[px + 0]; 80 | var g = data[px + 1]; 81 | var b = data[px + 2]; 82 | var n = r + g + b; 83 | var intensity = n / 765; 84 | sum += intensity; 85 | } 86 | } 87 | 88 | focus += (sum / pixels) * .85; 89 | segs.push(new Segment(x, y, width, height, focus * 5)); 90 | y += size; 91 | } 92 | x += size; 93 | } 94 | 95 | return segs; 96 | } -------------------------------------------------------------------------------- /src/helpers/autofocus.js: -------------------------------------------------------------------------------- 1 | import Focus from '../vendors/focus.js' 2 | 3 | export default function(Vue) { 4 | 5 | const original = Vue.options.components["k-files-section"] 6 | 7 | Vue.component('k-files-section', { 8 | extends: original, 9 | data() { 10 | return { 11 | firstLoad: true, 12 | } 13 | }, 14 | watch: { 15 | data: { 16 | immediate: false, 17 | handler(newData, oldData) { 18 | // if there's no old data, it's been triggered while initializing 19 | if(this.isLoading) return false 20 | if(!oldData.length) { 21 | if(this.firstLoad) { 22 | this.firstLoad = false 23 | return false 24 | } 25 | } 26 | 27 | // compare the two arrays to check for new file(s) 28 | let newFiles = newData.filter((el, index) => { 29 | let match = oldData.filter((oldEl, index) => { return oldEl.filename == el.filename }) 30 | return !match.length 31 | }) 32 | 33 | // if there's no new file 34 | if(!newFiles.length) return false 35 | 36 | if (FileReader) { 37 | this.findFocus(newFiles) 38 | } 39 | } 40 | } 41 | }, 42 | methods: { 43 | findFocus(files) { 44 | files.forEach(file => { 45 | let self = this 46 | 47 | var xhr = new XMLHttpRequest(); 48 | xhr.open('get', file.url); 49 | xhr.responseType = 'blob'; 50 | xhr.onload = function(){ 51 | var fr = new FileReader(); 52 | fr.onload = function(){ 53 | var _canvas = document.createElement('canvas'), 54 | _ctx = _canvas.getContext('2d'), 55 | _img = new Image; 56 | 57 | _img.onload = function(){ 58 | var _w = _img.width, 59 | _h = _img.height; 60 | 61 | _canvas.width = _w; 62 | _canvas.height = _h; 63 | 64 | _ctx.drawImage(_img, 0, 0); 65 | 66 | var _p = Focus(_canvas, { debug: false }), 67 | _propX = _p.x / _w, 68 | _propY = _p.y / _h, 69 | _propX = (Math.round(_propX * 100)/100).toFixed(2), 70 | _propY = (Math.round(_propY * 100)/100).toFixed(2), 71 | coords = '{"x":'+ _propX +',"y":'+ _propY +'}'; 72 | 73 | self.saveFocus(file, coords) 74 | } 75 | _img.src = fr.result; 76 | }; 77 | fr.readAsDataURL(xhr.response); 78 | }; 79 | xhr.send(); 80 | }) 81 | }, 82 | saveFocus(file, coords) { 83 | this.$api.post('autofocus/save-focus', { uri: file.parent, filename: file.filename, coords: coords }) 84 | .then(response => { 85 | // console.log(response) 86 | }) 87 | .catch(error => { 88 | console.log(error) 89 | }) 90 | } 91 | } 92 | }) 93 | 94 | } 95 | -------------------------------------------------------------------------------- /_test/test.md: -------------------------------------------------------------------------------- 1 | ![01](https://user-images.githubusercontent.com/14079751/29251189-6adffd3e-8051-11e7-9b7c-c9373a5caf69.jpg) 2 | ![02](https://user-images.githubusercontent.com/14079751/29251193-6ae27352-8051-11e7-8bfa-77abe4dc1d14.jpg) 3 | ![03](https://user-images.githubusercontent.com/14079751/29251190-6ae21574-8051-11e7-8890-0b03d4d9b642.jpg) 4 | ![04](https://user-images.githubusercontent.com/14079751/29251191-6ae21614-8051-11e7-9a23-0266e87745e5.jpg) 5 | ![05](https://user-images.githubusercontent.com/14079751/29251194-6ae2dafe-8051-11e7-9e63-4208175d5982.jpg) 6 | ![06](https://user-images.githubusercontent.com/14079751/29251192-6ae24990-8051-11e7-8358-59bcf0f05ae3.jpg) 7 | ![07](https://user-images.githubusercontent.com/14079751/29251197-6afbd4d2-8051-11e7-9cbd-84a560d4a5d0.jpg) 8 | ![08](https://user-images.githubusercontent.com/14079751/29251199-6afc4f34-8051-11e7-9f4c-40eb4f4f079d.jpg) 9 | ![09](https://user-images.githubusercontent.com/14079751/29251196-6afaf814-8051-11e7-9f78-e15eb5a81c3e.jpg) 10 | ![10](https://user-images.githubusercontent.com/14079751/29251195-6afb023c-8051-11e7-9f3d-ae179106ee90.jpg) 11 | ![11](https://user-images.githubusercontent.com/14079751/29251198-6afc0e52-8051-11e7-8364-19f5c6b4e328.jpg) 12 | ![12](https://user-images.githubusercontent.com/14079751/29251200-6b008392-8051-11e7-8e36-91351d464655.jpg) 13 | ![13](https://user-images.githubusercontent.com/14079751/29251203-6b22d456-8051-11e7-9782-75479111b395.jpg) 14 | ![14](https://user-images.githubusercontent.com/14079751/29251201-6b225e40-8051-11e7-92b3-365550f05730.jpg) 15 | ![15](https://user-images.githubusercontent.com/14079751/29251202-6b22c510-8051-11e7-8351-5b4f54d036be.jpg) 16 | ![16](https://user-images.githubusercontent.com/14079751/29251204-6b251db0-8051-11e7-8144-fbffbc3e6148.jpg) 17 | ![17](https://user-images.githubusercontent.com/14079751/29251206-6b260bd0-8051-11e7-8ec5-4a449b4012e1.jpg) 18 | ![18](https://user-images.githubusercontent.com/14079751/29251205-6b254146-8051-11e7-861a-c61cd83fe134.jpg) 19 | ![19](https://user-images.githubusercontent.com/14079751/29251207-6b3f39c0-8051-11e7-9612-1e82e9ff6cce.jpg) 20 | ![20](https://user-images.githubusercontent.com/14079751/29251210-6b41d630-8051-11e7-877c-3f92f5a476e7.jpg) 21 | ![21](https://user-images.githubusercontent.com/14079751/29251208-6b4095c2-8051-11e7-9547-d567298dff8a.jpg) 22 | ![22](https://user-images.githubusercontent.com/14079751/29251209-6b410d2c-8051-11e7-976e-0d3c02344c2e.jpg) 23 | ![23](https://user-images.githubusercontent.com/14079751/29251212-6b42ad1c-8051-11e7-955a-5c0f9831bc77.jpg) 24 | ![24](https://user-images.githubusercontent.com/14079751/29251211-6b426000-8051-11e7-8aa6-6367ed05cc7d.jpg) 25 | ![25](https://user-images.githubusercontent.com/14079751/29251213-6b5a5f0c-8051-11e7-8fca-855b9e850508.jpg) 26 | ![26](https://user-images.githubusercontent.com/14079751/29251218-6b611568-8051-11e7-9766-086e5cc6c3da.jpg) 27 | ![27](https://user-images.githubusercontent.com/14079751/29251214-6b5a6ede-8051-11e7-9443-7a6d9804177f.jpg) 28 | ![28](https://user-images.githubusercontent.com/14079751/29251216-6b5c9f92-8051-11e7-8c91-ceaccf5631ba.jpg) 29 | ![29](https://user-images.githubusercontent.com/14079751/29251217-6b5daae0-8051-11e7-9b39-af664016572f.jpg) 30 | ![30](https://user-images.githubusercontent.com/14079751/29251215-6b5ba8f8-8051-11e7-8558-4c063fe033ef.jpg) 31 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | > ⚠️ This plugin won't be maintained for Kirby 4+. 2 | 3 | # Kirby Autofocus 4 | 5 | Content aware image cropping for kirby. 6 | 7 | ![screenshot-autofocus-k3](https://user-images.githubusercontent.com/14079751/47998289-15b0f100-e0ff-11e8-8865-0267db33660d.jpg) 8 | 9 |
10 | 11 | ## Overview 12 | 13 | > This plugin is completely free and published under the MIT license. However, if you are using it in a commercial project and want to help me keep up with maintenance, please consider [making a donation of your choice](https://www.paypal.me/sylvainjl) or purchasing your license(s) through [my affiliate link](https://a.paddle.com/v2/click/1129/36369?link=1170). 14 | 15 | Autofocus is an extension for the [Focus plugin](https://github.com/flokosiol/kirby-focus). 16 | 17 | This plugin acts as a JS `image.upload` hook, processing the / each image with the [focus component](https://github.com/component/focus), determining its appropriate focus point and saving it to the meta data file. 18 | 19 | **Please note that :** 20 | 21 | - This is an experimental plugin. The algorithm isn't foolproof, it works best with certain kinds of images, and obviously the more the context of an image is *« clear »*, the more its efficiency increases. I have included [a sample test with 30 images](https://github.com/sylvainjule/kirby-autofocus/blob/master/_test/test.md), as well as a way to run your own. 22 | 23 | - The aim of this plugin is therefore to provide a *« better than nothing »* fallback to the Focus plugin whenever the editor didn't specify a focus point (omission, too many images, you name it). 24 | 25 | - The plugin will only process images uploaded with the `files` section. It will not process replaced images. Suggestions welcome if you find a way to register a better hook. 26 | 27 |
28 | 29 | ## Installation 30 | 31 | > If you are looking to use this plugin with Kirby 2, please switch to the `kirby-2` branch. 32 | 33 | First, you must install the [Focus plugin](https://github.com/flokosiol/kirby-focus). 34 | 35 | > Note : the plugin would still work without it, but apart from adding the focus point to the .txt file, you wouldn't be able to preview / override / use it with the Focus methods. 36 | 37 | Once it is done, download and copy this repository to ```/site/plugins/autofocus``` 38 | 39 | Alternatively, you can install it with composer: ```composer require sylvainjule/autofocus``` 40 | 41 |
42 | 43 | ## Usage 44 | 45 | There's nothing else to do. 46 | 47 | The plugin will now process any image you upload through the panel, find a focus point, and use the `flokosiol.focus.field.key` to write the coordinates. Then you can use the Focus plugin as you usually do. 48 | 49 |
50 | 51 | ## Run tests 52 | 53 | I have included [a sample test with 30 images](_test/test.md). 54 | 55 | You can run you own tests to determine if the algorithm suits your needs. One simple way is to add the `focus` field in your blueprint, so that you can have a preview of where the focus is set for every image you upload. 56 | 57 | An other way is to open the `index.html` of the `_test` folder in a browser, and upload an image. 58 | The images used for calculation will be displayed on the page, as well as the coordinates in the console. 59 | 60 |
61 | 62 | ## Credits 63 | 64 | - [@flokosiol](https://github.com/flokosiol/) for his great help with this extension. 65 | - The [focus component](https://github.com/component/focus) is used to determine the focus point on upload. 66 | 67 |
68 | 69 | ## License 70 | 71 | MIT 72 | -------------------------------------------------------------------------------- /index.js: -------------------------------------------------------------------------------- 1 | (function(){"use strict";function d(t){if(!(this instanceof d))return new d(t);if(!t)throw new TypeError("convolution matrix required");this.matrix=t,this.factor(1),this.bias(0)}d.prototype.width=function(t){return this.w=t,this},d.prototype.height=function(t){return this.h=t,this},d.prototype.factor=function(t){return this._factor=t,this},d.prototype.bias=function(t){return this._bias=t,this},d.prototype.apply=function(t,e){for(var r=t.data,a=e.data,i=this.w,n=this.h,h=this.matrix,f=h[0].length,o=h.length,s=Math.floor(o/2),p=this._factor,g=this._bias,v=0;vr.intensity&&(r=e);return r}function R(t,e,r){var a=[],i=20,n=e/2,h=r/2;function f(I,M){return I=Math.abs(I-n)/n,M=Math.abs(M-h)/h,I/=2,M/=2,1-(I+M)}for(var o=0;o!a.filter((o,s)=>o.filename==n.filename).length);if(!i.length)return!1;FileReader&&this.findFocus(i)}}},methods:{findFocus(r){r.forEach(a=>{let i=this;var n=new XMLHttpRequest;n.open("get",a.url),n.responseType="blob",n.onload=function(){var h=new FileReader;h.onload=function(){var f=document.createElement("canvas"),o=f.getContext("2d"),s=new Image;s.onload=function(){var p=s.width,g=s.height;f.width=p,f.height=g,o.drawImage(s,0,0);var v=P(f,{debug:!1}),l=v.x/p,u=v.y/g,l=(Math.round(l*100)/100).toFixed(2),u=(Math.round(u*100)/100).toFixed(2),c='{"x":'+l+',"y":'+u+"}";i.saveFocus(a,c)},s.src=h.result},h.readAsDataURL(n.response)},n.send()})},saveFocus(r,a){this.$api.post("autofocus/save-focus",{uri:r.parent,filename:r.filename,coords:a}).then(i=>{}).catch(i=>{console.log(i)})}}})}panel.plugin("sylvainjule/autofocus",{use:[C]})})(); 2 | -------------------------------------------------------------------------------- /_test/assets/js/scripts.js: -------------------------------------------------------------------------------- 1 | $(document).ready(function() { 2 | $('input[type=file]').on('change', function() { 3 | var files = this.files; 4 | 5 | var _url = window.location.href; 6 | _url = _url.replace('/edit', ''); 7 | _url = _url.split('/').slice(-1)[0]; 8 | 9 | // FileReader support 10 | if (FileReader && files && files.length) { 11 | var fr = new FileReader(); 12 | 13 | for (var i = 0; i < files.length; i++) { 14 | var _file = files[i]; 15 | 16 | fr.onload = function () { 17 | returnPos(fr.result); 18 | } 19 | fr.readAsDataURL(_file); 20 | } 21 | 22 | } 23 | }); 24 | }); 25 | 26 | var returnPos = function(file) { 27 | var canvas = $('#source')[0], 28 | ctx = canvas.getContext('2d'), 29 | img = new Image; 30 | img.src = file; 31 | 32 | img.onload = function(){ 33 | var _w = img.width; 34 | var _h = img.height; 35 | canvas.width = _w; 36 | canvas.height = _h; 37 | 38 | ctx.drawImage(img, 0, 0); 39 | 40 | var _p = focus(canvas, { debug: true }), 41 | _propX = _p.x / _w, 42 | _propY = _p.y / _h, 43 | _propX = (Math.round(_propX * 100)/100).toFixed(2), 44 | _propY = (Math.round(_propY * 100)/100).toFixed(2), 45 | _coordinates = '{"x":'+ _propX +',"y":'+ _propY +'}'; 46 | 47 | console.log(_coordinates); 48 | } 49 | } 50 | 51 | 52 | 53 | var edges = [ 54 | [0, -1, 0], 55 | [-1, 4, -1], 56 | [0, -1, 0] 57 | ]; 58 | 59 | function focus(canvas, options){ 60 | options = options || {}; 61 | var debug = options.debug; 62 | 63 | // setup 64 | var w = canvas.width; 65 | var h = canvas.height; 66 | var ctx = canvas.getContext('2d'); 67 | var data = ctx.getImageData(0, 0, w, h); 68 | var res = ctx.createImageData(w, h); 69 | 70 | // edge detection 71 | Filter(edges) 72 | .width(w) 73 | .height(h) 74 | .apply(data, res); 75 | 76 | // edge debugging 77 | if (debug) { 78 | canvas.width *= 2; 79 | ctx.putImageData(res, 0, 0); 80 | } 81 | 82 | // single-pass 83 | var segs = segments(res.data, w, h); 84 | 85 | // segment debugging 86 | if (debug) { 87 | debugSegments(segs, ctx); 88 | ctx.translate(w, 0); 89 | ctx.putImageData(data, w, 0); 90 | debugSegments(segs, ctx); 91 | } 92 | 93 | 94 | return focalSegment(segs).midpoint(); 95 | } 96 | // Draw debug segments. 97 | function debugSegments(segs, ctx) { 98 | for (var i = 0; i < segs.length; ++i) segs[i].draw(ctx); 99 | focalSegment(segs).drawFocus(ctx); 100 | } 101 | // Return the most "intense" segment. 102 | function focalSegment(segs) { 103 | var seg; 104 | var ret = segs[0]; 105 | for (var i = 1; i < segs.length; ++i) { 106 | seg = segs[i]; 107 | if (seg.intensity > ret.intensity) ret = seg; 108 | } 109 | return ret; 110 | } 111 | // Return segments for `data` 112 | function segments(data, w, h){ 113 | var segs = []; 114 | var size = 20; 115 | var hx = w / 2; 116 | var hy = h / 2; 117 | 118 | function factor(x, y) { 119 | x = Math.abs(x - hx) / hx; 120 | y = Math.abs(y - hy) / hy; 121 | x /= 2; 122 | y /= 2; 123 | return 1 - (x + y); 124 | } 125 | 126 | for (var x = 0; x < w; ++x) { 127 | for (var y = 0; y < h; ++y) { 128 | var focus = factor(x + size / 2, y + size / 2) * .15; 129 | var width = Math.min(w - x, size); 130 | var height = Math.min(h - y, size); 131 | var pixels = size * size; 132 | var sum = 0; 133 | 134 | for (var sx = 0; sx < width; ++sx) { 135 | for (var sy = 0; sy < height; ++sy) { 136 | var px = ((y + sy) * w + (x + sx)) * 4; 137 | var r = data[px + 0]; 138 | var g = data[px + 1]; 139 | var b = data[px + 2]; 140 | var n = r + g + b; 141 | var intensity = n / 765; 142 | sum += intensity; 143 | } 144 | } 145 | 146 | focus += (sum / pixels) * .85; 147 | segs.push(new Segment(x, y, width, height, focus * 5)); 148 | y += size; 149 | } 150 | x += size; 151 | } 152 | 153 | return segs; 154 | }; 155 | 156 | 157 | /* Point 158 | ------------------------*/ 159 | 160 | function Point(x, y) { 161 | this.x = x; 162 | this.y = y; 163 | } 164 | Point.prototype.toString = function(){ 165 | 166 | return '(' + this.x + ', ' + this.y + ')'; 167 | }; 168 | 169 | 170 | /* Segment 171 | ------------------------*/ 172 | 173 | function Segment(x, y, w, h, intensity) { 174 | this.x = x; 175 | this.y = y; 176 | this.w = w; 177 | this.h = h; 178 | this.intensity = intensity || 0; 179 | } 180 | Segment.prototype.midpoint = function(){ 181 | return new Point( 182 | this.x + this.w / 2, 183 | this.y + this.h / 2); 184 | }; 185 | Segment.prototype.draw = function(ctx){ 186 | var n = 255 * this.intensity | 0; 187 | var rad = this.w / 2 * this.intensity; 188 | ctx.save(); 189 | ctx.beginPath(); 190 | ctx.fillStyle = 'rgba(' + n + ',0,0, .5)'; 191 | ctx.arc(this.x + this.w / 2, this.y + this.h / 2, rad, 0, Math.PI * 2, false); 192 | ctx.fill(); 193 | ctx.restore(); 194 | }; 195 | Segment.prototype.drawFocus = function(ctx){ 196 | var n = 255 * this.intensity | 0; 197 | var rad = this.w / 2 * this.intensity; 198 | ctx.save(); 199 | ctx.beginPath(); 200 | ctx.fillStyle = 'rgba(0,0,' + n + ', .5)'; 201 | ctx.arc(this.x + this.w / 2, this.y + this.h / 2, rad, 0, Math.PI * 2, false); 202 | ctx.fill(); 203 | ctx.restore(); 204 | }; 205 | 206 | 207 | /* Filter 208 | ------------------------*/ 209 | 210 | function Filter(matrix) { 211 | if (!(this instanceof Filter)) return new Filter(matrix); 212 | if (!matrix) throw new TypeError('convolution matrix required'); 213 | this.matrix = matrix; 214 | this.factor(1); 215 | this.bias(0); 216 | } 217 | 218 | Filter.prototype.width = function(n){ 219 | this.w = n; 220 | return this; 221 | }; 222 | Filter.prototype.height = function(n){ 223 | this.h = n; 224 | return this; 225 | }; 226 | Filter.prototype.factor = function(n){ 227 | this._factor = n; 228 | return this; 229 | }; 230 | Filter.prototype.bias = function(n){ 231 | this._bias = n; 232 | return this; 233 | }; 234 | Filter.prototype.apply = function(input, result){ 235 | var data = input.data; 236 | var out = result.data; 237 | var width = this.w; 238 | var height = this.h; 239 | var matrix = this.matrix; 240 | var w = matrix[0].length; 241 | var h = matrix.length; 242 | var half = Math.floor(h / 2); 243 | var factor = this._factor; 244 | var bias = this._bias; 245 | 246 | for (var y = 0; y < height - 1; y++) { 247 | for (var x = 0; x < width - 1; x++) { 248 | var px = (y * width + x) * 4; 249 | var r = 0, g = 0, b = 0; 250 | 251 | for (var cy = 0; cy < w; ++cy) { 252 | for (var cx = 0; cx < h; ++cx) { 253 | var cpx = ((y + (cy - half)) * width + (x + (cx - half))) * 4; 254 | r += data[cpx + 0] * matrix[cy][cx]; 255 | g += data[cpx + 1] * matrix[cy][cx]; 256 | b += data[cpx + 2] * matrix[cy][cx]; 257 | } 258 | } 259 | 260 | out[px + 0] = factor * r + bias; 261 | out[px + 1] = factor * g + bias; 262 | out[px + 2] = factor * b + bias; 263 | out[px + 3] = data[px + 3]; 264 | } 265 | } 266 | }; 267 | Filter.prototype.canvas = function(canvas){ 268 | var w = canvas.width; 269 | var h = canvas.height; 270 | var ctx = canvas.getContext('2d'); 271 | var data = ctx.getImageData(0, 0, w, h); 272 | var result = ctx.createImageData(w, h); 273 | this.width(w); 274 | this.height(h); 275 | this.apply(data, result); 276 | ctx.putImageData(result, 0, 0); 277 | }; 278 | 279 | /* File 280 | -------------------------*/ 281 | 282 | function file(file) { 283 | return new File(file); 284 | } 285 | // Initialize a new `File` wrapper. 286 | function File(file) { 287 | Emitter.call(this); 288 | // this.file = file; 289 | for (var key in file) this[key] = file[key]; 290 | } 291 | //Inherits from `Emitter.prototype`. 292 | Emitter(File.prototype); 293 | // Check if the mime type matches `type` 294 | File.prototype.is = function(type){ 295 | var real = this.file.type; 296 | 297 | // identical 298 | if (type == real) return true; 299 | 300 | real = real.split('/'); 301 | type = type.split('/'); 302 | 303 | // type/* 304 | if (type[0] == real[0] && type[1] == '*') return true; 305 | 306 | // */subtype 307 | if (type[1] == real[1] && type[0] == '*') return true; 308 | 309 | return false; 310 | }; 311 | // Convert to `type` and invoke `fn(err, result)` 312 | File.prototype.to = function(type, fn){ 313 | if (!window.FileReader) return fn(); 314 | var reader = Reader(); 315 | reader.on('error', fn); 316 | reader.on('end', function(res){ fn(null, res) }); 317 | reader.read(this.file, type); 318 | return reader; 319 | }; 320 | // Convert to an `ArrayBuffer` 321 | File.prototype.toArrayBuffer = function(fn){ 322 | 323 | return this.to('ArrayBuffer', fn); 324 | }; 325 | // Convert to text. 326 | File.prototype.toText = function(fn){ 327 | 328 | // TODO: encoding 329 | return this.to('Text', fn); 330 | }; 331 | // Convert to a data uri. 332 | File.prototype.toDataURL = function(fn){ 333 | 334 | return this.to('DataURL', fn); 335 | }; 336 | 337 | 338 | /* Emitter 339 | -------------------------*/ 340 | 341 | // Expose `Emitter` 342 | if (typeof module !== 'undefined') { 343 | 344 | module.exports = Emitter; 345 | } 346 | // Initialize a new `Emitter` 347 | function Emitter(obj) { 348 | 349 | if (obj) return mixin(obj); 350 | } 351 | // Mixin the emitter properties. 352 | function mixin(obj) { 353 | for (var key in Emitter.prototype) { 354 | obj[key] = Emitter.prototype[key]; 355 | } 356 | return obj; 357 | } 358 | // Listen on the given `event` with `fn` 359 | Emitter.prototype.on = 360 | Emitter.prototype.addEventListener = function(event, fn){ 361 | this._callbacks = this._callbacks || {}; 362 | (this._callbacks['$' + event] = this._callbacks['$' + event] || []) 363 | .push(fn); 364 | return this; 365 | }; 366 | //Adds an `event` listener that will be invoked a single time then automatically removed. 367 | Emitter.prototype.once = function(event, fn){ 368 | function on() { 369 | this.off(event, on); 370 | fn.apply(this, arguments); 371 | } 372 | 373 | on.fn = fn; 374 | this.on(event, on); 375 | return this; 376 | }; 377 | // Remove the given callback for `event` or all registered callbacks. 378 | Emitter.prototype.off = 379 | Emitter.prototype.removeListener = 380 | Emitter.prototype.removeAllListeners = 381 | Emitter.prototype.removeEventListener = function(event, fn){ 382 | this._callbacks = this._callbacks || {}; 383 | 384 | // all 385 | if (0 == arguments.length) { 386 | this._callbacks = {}; 387 | return this; 388 | } 389 | 390 | // specific event 391 | var callbacks = this._callbacks['$' + event]; 392 | if (!callbacks) return this; 393 | 394 | // remove all handlers 395 | if (1 == arguments.length) { 396 | delete this._callbacks['$' + event]; 397 | return this; 398 | } 399 | 400 | // remove specific handler 401 | var cb; 402 | for (var i = 0; i < callbacks.length; i++) { 403 | cb = callbacks[i]; 404 | if (cb === fn || cb.fn === fn) { 405 | callbacks.splice(i, 1); 406 | break; 407 | } 408 | } 409 | return this; 410 | }; 411 | // Emit `event` with the given args. 412 | Emitter.prototype.emit = function(event){ 413 | this._callbacks = this._callbacks || {}; 414 | var args = [].slice.call(arguments, 1) 415 | , callbacks = this._callbacks['$' + event]; 416 | 417 | if (callbacks) { 418 | callbacks = callbacks.slice(0); 419 | for (var i = 0, len = callbacks.length; i < len; ++i) { 420 | callbacks[i].apply(this, args); 421 | } 422 | } 423 | 424 | return this; 425 | }; 426 | // Return array of callbacks for `event` 427 | Emitter.prototype.listeners = function(event){ 428 | this._callbacks = this._callbacks || {}; 429 | return this._callbacks['$' + event] || []; 430 | }; 431 | //Check if this emitter has `event` handlers 432 | Emitter.prototype.hasListeners = function(event){ 433 | 434 | return !! this.listeners(event).length; 435 | }; 436 | 437 | -------------------------------------------------------------------------------- /_test/assets/js/vendors/jquery.min.js: -------------------------------------------------------------------------------- 1 | /*! jQuery v2.1.3 | (c) 2005, 2014 jQuery Foundation, Inc. | jquery.org/license */ 2 | !function(a,b){"object"==typeof module&&"object"==typeof 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